Blue John

Sphene

Blue John Vs Sphene

Blue John

Sphene

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1 Astrology

1.1 Origin

Not Available

Madagascar, India, Brazil, USA, Canada, Pakistan, Russia

1.2 Color

White, Colorless, Blue, Red, Green, Yellow, Violet

Yellow, Brown

1.3 Streak

Not Available

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.00-3.25Not Available

1 7.18

2.5 Fracture

Not Available

2.6 Cleavage

Not Available

2.7 Mohs Hardness

Not AvailableNot Available

2 10

2.8 Chemical Composition

CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

3 Optical Properties

3.1 Luster

Not Available

3.2 Pleochroism

Not Available

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent

Not Available

3.5 Refractive Index

1.432-1.4361.84-2.11

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

monoclinic

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

Transparent

Color grading system

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Blue John Vs Sphene Fracture

Fracture is an important parameter when you compare Blue John and Sphene Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Sphene fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges.

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Blue John Vs Sphene Luster

A primary knowledge about Blue John vs Sphene luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria.